samtto 那篇文章很简单，看其他文章也能懂。下面是从那个文章给你搬过来的。
What is a PWA? and How to Install / Add to Home Screen Progressive Web Apps?
1. What is a Progressive Web App (PWA)?
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2. How to Install PWA to Windows or macOS?
To install any PWA website as an application on Windows or MAC via Google Chrome Browser follow below steps:
1️⃣Open Chrome on Windows or MAC.
2️⃣Go to the website (example: beta.pynk.io)
3️⃣Go to Settings (top right corner)
4️⃣Click Install “APP Name”
Complete these steps to install PWA on Windows or MAC as a Desktop App and create a shortcut to your desktop.
3. How to Add to Home Screen PWA to iPhone or Android?
IOS (iPhone)
1️⃣Open Safari on your iPhone
2️⃣Go to the website (example: beta.pynk.io)
3️⃣Tap the Share button on Safari
4️⃣Find by slide to the right “Add to Home Screen.”
5️⃣Tap it, then tap Add (top right)
Android
1️⃣Open Chrome on your Android Mobile Device
2️⃣Go to the website (example: beta.pynk.io)
3️⃣Tap Settings (Top right corner) on Chrome
4️⃣Slide down and tap “Add to Home Screen.”
If you want to see our PWA in action, download the Pynk Beta app here and tell us what you think by leaving your comments below. Hope you like it!! 🙏
Zack Yurtsever
想了解更多可以看看这里 https://www.zhihu.com/question/59108831 ，有很多图文说明。